Lawn-mower



Patented Aug. 2, |898 T 2 m EQ f mn, M Huw wh h 0A 7.x o Mmm 13 WJ num. I. MIM- ww IF W P m, e 1. ,f m

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UNITED STATES 'PATENT OIT-Ion.

PATRICK MCLAUGHLIN, OF DOVER, NEW HAMPSHIRE.

LAWN-MowER.

SPECIFICATION forming' part o f 'Letters Iatent Nfeoaee, dated August 2, 189s.

Application filed April 29J 1896. Serial No. 589,521. (No model.)

To ctZZ whom, t may concern:

Be it knownthat I, PATRICK ylvIoLAUcrII- LIN, a citizen of the United States, residing at Dover, inthecounty of Stratford and State of New Hampshire, have invented certain new and useful Improvements in Lawn-Mowers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. g

Thisinvention relates to certain new and useful improvements in lawn-mowers and it has for its objects, among others, to provide a lawn-mower which is simple in its construction, cheap and durable, efficient in its operation, not liable to get out of order or to be broken in use, and so constructed that it may be employed for mowing'long-grass, terraces, around shrubs, iiower-beds, and under fences and along hedges.

Other objects and advantages of the invention will hereinafter appear, and the novel features thereof will be particularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in WhichvFigure l is a plan view of a lawn-mower constructed in accordance with my invention.`

Fig. 2 vis a substantially central longitudinal vertical section. Fig. 3 is a detail of one of the wheels. Fig. 4 is a detail of one of the cog-wheels and its double pawl. Fig. 5 is a detail in vertical section through the main axle and wheel.

Like letters of reference indicate like parts in the several views.

Referring now to the details of the drawings by letter, A designates the axle, and B the wheels, which are loosely mounted thereon, their inner faces'being flanged, as shown at b, and the hub b', Which'extends within the chamber formed bythe flange, is provided with a ratchetfB', the outer periphery of the wheelsl being corrugated or roughened in the usual manner.

C are cog-Wheels arranged to revolve within the chamber formed by the flanges of the said wheels, and on these cog-Wheels is the pivoted 'the same, as indicated.

double pawl D', which is designed to engage the said ratchet asthe Wheels are revolved.

E are plates or disks fast upon the sleeve E', which surrounds the axle, and to the upper faces of these disks orplates are the metallic strips e, which extend partially around These plates or disks can be secured in position in any suitable manner-as, for instance, by the set-screws e', which pass through the hub thereof and into .the sleeve. On each of these disks is mounted a bearing f, in which is [designed to revolve the shaft F, extended atfright angles to theaxle, and on which shaftisa cog-wheel F',

meshing with the cog-wheel on the axle, and

to the outer end or face is a small arm carryinga crank-pin g', upon which is loosely sleeved one end of the connecti n g-rod H, which extends substantially parallel with the axle, a nut h serving to retain the same on the crank-pin. The other en d of this connectingrod h is sleeved upon-the pin t', projecting from the arm I and held thereon by a suitable nut i', and this arm I is pivotally mounted on the pin J, depending from the hanger J', which is loosely supported from the sleeve on the axle.

The front end of the arm I is adapted at I2 t0 receive the pin 0r projection k, depending from the cutter-bar K', which is mounted to reciprocate in suitable guides (not shown) on the under face of the iinger-bar L, which is suitably supported at the rear ofthe machine on the forward extension Z on the plates or disks, which are secured to the sleeve of the axle, as shown, so that as the arm I is moved on its pivot the cutter-bar is reciprocated back and forth. The knife-bar is provided with the usual guard-iingers,and, in fact, this part of the device maybe of any well-known or approved form of construction.

The operation will be understood. As the machine is propelled forward the cog-Wheels on the shaft are caused to revolve, and thus, through the medium of the cog-wheels meshing therewith and the crank arms and pins and the rods H and I, the latter is oscillated on its pivot and the cutter-bar reci procated.

Extending rearward from the disks or plates 'on the opposite ends of the sleeve surrounding the axle are the arms N, to which are se- IOO cured the end of the yoke N',to which the draft appliances are designed to be attached, and on these extensions are the slotted arms l), rendered adjustable in the direction of the length of the machine by the bolts and nuts j), which bolts pass through the slots of the arms and are held to the extension of the plates. These arms, at their forward ends, are provided upon their adjacent faces with the bosses Q, in which are held the pintles yr of the roller R.

Modifications in details may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

llaving thus described the invention, what is claimed as new isl. The combination with the axle and the wheels loosely mounted thereon, with their inner faces flanged and the hub of each extended within the chamber formed by said flange, ratchet-disks on said hubs, cogwhecls mounted to revolve within said chambers, pivoted double pawls on the cog-wheels engaging said ratchets, a sleeve surrounding the axle, disks fast upon said sleeve, flange-strips on the upper faces of and extending par tially around said disks, a bearing on each of said disks, shafts mounted to revolve in said bearings at right angles to the axle, cogwheels on said shafts meshing with the cogwheels on the axle, a crank carried by each of said shafts, connecting-rods attached to said cranks, and an oscillating bar pivotally suspended beneath the axle connected at its rear end to the adj acentends of said connecting-rods and at its forward end to the reciprocatingknifc-bar,substantially as described.

2. The combination with the axle and the wheels loosely mounted thereon, with their inner faces Ilanged and t-he hub extended within the chamber formed by the flange, a ratchet on said hub, cog-wheels mounted to revolve within said chamber,a pivotcd double pawl on the cogwheel engaging said ratchet, a sleeve surrounding the axle, plates fast upon said sleeve, strips on the upper faces of the plates, extending partiallyaround the same, a bearing on each of said disks, a shaft mounted to revolve in said bearing at right angles to the axle, a cog-wheel on said shaft meshing with the cog-wheel on the axle, a disk fast on the sleeve surrounding the axle, said disk covering the toothed face of said cog wheel, and a crank carried thereby, a connecting-rod extending from said crank, a hanger loosely supported from said sleeve, a pin depending 'from said hanger, and an oscillating bar pivotally mounted on said pin and connected with the knife-bar and said connecting-rod, substantially as described.

In testimony whereof l have signed this specification inthe presence of two subscribing witnesses.

'PA'lRlC/l( MCDMTHIILIN.

\Vitnesses:

JA Mns NcGno'rr, l. ll. lnnivinnn. 

